TY  - BOOK
ED  - GIS/LIS '91.
ED  - American Congress on Surveying and Mapping.
ED  - American Society for Photogrammetry and Remote Sensing.
TI  - GIS/LIS '91: proceedings 
SN  - 0944426751 (set, pbk.)
PY  - 1991///
CY  - Bethesda, MD
PB  - American Society for Photogrammetry and Remote Sensing, American Congress on Surveying and Mapping
KW  - Geography
KW  - Data processing
KW  - Congresses
KW  - Information storage and retrieval systems
N1  - Includes bibliographical references
ER  -